jodi arias spent 18 days on the stand pleading her case. now lawyers are making their final closing arguments. now, some attorneys like to save a surprise sometimes for closing arguments because it's the last thing those jurors may hold on to, and if we hear any surprise fireworks, obviously, inside that courtroom, we will let you know right away. >>> coming up next, though, this is a story that everyone is talking about today. i was talking about this this morning on a plane. a mother reappears suddenly after being gone for more than a decade, just up and leaves her life. she says she couldn't take her family life anymore, and we're about to speak live with the investigator to whom she confessed, the investigator who had been tracking her for all these years. plus, a 5 year old accidently shoots and kills his little sister with his very own gun. that's coming up, as well. stay here. look is only the beginning. ♪ ♪ this is a stunning work of technology. ♪ this is the 2013 lexus es and the first-ever es hybrid. this is the pursuit of p